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Backport PR #19709 on branch v3.4.x (Fix arrow_guide.py typo) #19711

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Merged
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Mar 15, 2021
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Backport PR #19709 on branch v3.4.x (Fix arrow_guide.py typo) #19711

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19 changes: 9 additions & 10 deletions examples/shapes_and_collections/arrow_guide.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,9 @@
that behave differently when the data limits on a plot are changed. In general,
points on a plot can either be fixed in "data space" or "display space".
Something plotted in data space moves when the data limits are altered - an
example would the points in a scatter plot. Something plotted in display space
stays static when data limits are altered - an example would be a figure title
or the axis labels.
example would be the points in a scatter plot. Something plotted in display
space stays static when data limits are altered - an example would be a
figure title or the axis labels.

Arrows consist of a head (and possibly a tail) and a stem drawn between a
start point and end point, called 'anchor points' from now on.
Expand Down Expand Up @@ -39,10 +39,9 @@
# -----------------------------------------------------------------------
#
# This is useful if you are annotating a plot, and don't want the arrow to
# to change shape or position if you pan or scale the plot. Note that when
# the axis limits change
# to change shape or position if you pan or scale the plot.
#
# In this case we use `.patches.FancyArrowPatch`
# In this case we use `.patches.FancyArrowPatch`.
#
# Note that when the axis limits are changed, the arrow shape stays the same,
# but the anchor points move.
Expand All @@ -63,14 +62,14 @@
# ---------------------------------------------------
#
# This is useful if you are annotating a plot, and don't want the arrow to
# to change shape or position if you pan or scale the plot.
# change shape or position if you pan or scale the plot.
#
# In this case we use `.patches.FancyArrowPatch`, and pass the keyword argument
# ``transform=ax.transAxes`` where ``ax`` is the axes we are adding the patch
# to.
#
# Note that when the axis limits are changed, the arrow shape and location
# stays the same.
# stay the same.

fig, axs = plt.subplots(nrows=2)
arrow = mpatches.FancyArrowPatch((x_tail, y_tail), (dx, dy),
Expand All @@ -90,10 +89,10 @@
# Head shape and anchor points fixed in data space
# ------------------------------------------------
#
# In this case we use `.patches.Arrow`
# In this case we use `.patches.Arrow`.
#
# Note that when the axis limits are changed, the arrow shape and location
# changes.
# change.

fig, axs = plt.subplots(nrows=2)

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